摘要
在硫酸体系中,Na^+浓度与SO_4^(2-)浓度呈正相关,Na^+浓度高,SO_4^(2-)浓度也高,在有Na^+存在的情况下加入Ca(OH)_2不能去除SO_4^(2-)。在溶液中引入氯离子将钠盐溶液由原来的硫酸体系转化为氯化体系,则SO_4^(2-)的去除效果较好,SO_4^(2-)浓度高达21.9g/L的含钠溶液,通过转化法SO_4^(2-)浓度可降到1.0 g/L以下。
In sulfuric acid system,the concentration of Na~+ and SO_4^(2-) concentration were positively correlated,high concentrations of Na~+,SO_4^(2-) concentration is high,in the case of presence of Na~+join Ca(OH)_2 can'tremove SO_4^(2-).The introduction of chloride ions in solution will sodium salt solution by the original system is transformed into sulfate chloride system,it is better to remove SO_4^(2-),SO_4^(2-) concentration of 21.9g/L sodium solution,through reforming process SO_4^(2-) concentration can be dropped below 1.0g/L.
出处
《世界有色金属》
2017年第23期222-224,共3页
World Nonferrous Metals
关键词
转化体系
硫酸根
含钠溶液
氯化钙
Transformation system
sulphate root
sodium solution
calcium chloride